Fluorescent quantum yield of pyrene probe in ultrathin polymer films
| Autor: | Shuo Feng, Guodong Liang, Fangming Zhu, Cai-xia Zheng, WanChu Wei |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Photoluminescence Polymers and Plastics General Chemical Engineering Organic Chemistry Quantum yield 02 engineering and technology Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Methacrylate Photochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Copolymer Pyrene Polystyrene Methyl methacrylate 0210 nano-technology |
| Zdroj: | Chinese Journal of Polymer Science. 35:400-406 |
| ISSN: | 1439-6203 0256-7679 |
| DOI: | 10.1007/s10118-017-1884-y |
| Popis: | The fluorescently labelled polymers including pyrene-labelled polystyrene (PyPS) and pyrene-labelled poly(methyl methacrylate) (PyPMMA) with narrow molecular weight distributions were synthesized by the atom transfer radical copolymerization (ATRCP) of styrene or methyl methacrylate with 1-pyrenemethyl methacrylate (PyMMA). The ultrathin PyPS and PyPMMA films with the thickness ranging from 30 nm to 400 nm supported on the quartz slides were prepared by spin-coating. The fluorescent quantum yield (QY) of the pyrene probe in the ultrathin polymer films was investigated by the photoluminescence spectrometer using an integrating sphere detector. The QY decreased with the reduction of film thickness in the sub-200 nm range. |
| Databáze: | OpenAIRE |
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